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Raised by the Media Session when a new presentation starts. This event indicates when the presentation will start and the offset between the presentation time and the source time.
Event values
Possible values retrieved from IMFMediaEvent::GetValue include the following.
| VARTYPE | Description |
|---|---|
| VT_EMPTY |
No event data. |
Attributes
The following attributes are defined for this event.
| Attribute | Description |
|---|---|
| MF_EVENT_START_PRESENTATION_TIME |
Starting time for the presentation. |
| MF_EVENT_PRESENTATION_TIME_OFFSET |
Offset between the presentation time and the media source's time stamps. |
| MF_EVENT_START_PRESENTATION_TIME_AT_OUTPUT |
Presentation time when the media sinks will render the first sample of the new topology. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps only] |
| Minimum supported server |
Windows Server 2008 [desktop apps only] |
| Header |
|
See also